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US 2014/0174834 A1Published application
Rolling cutter with bottom support
AssigneeSmith International, Inc.
InventorsYouhe Zhang, Chen Chen, Yuri Burhan, Jibin Shi
Life of this patent
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Abstract
A cutting element assembly includes a sleeve, a lining extending a distance axially from an end of the sleeve, and an inner cutter. The inner cutter has a cutting end, wherein the cutting end extends a depth from a cutting face, a side surface, and a body, wherein the body is at least partially disposed within the sleeve, and wherein the side surface of the cutting end interfaces with an interfacing surface of the lining.
Claims20
A cutting element assembly, comprising:
- a sleeve;
- a lining extending a distance axially from an end of the sleeve;
- an inner cutter, comprising:
- a cutting end, wherein the cutting end extends a depth from a cutting face;
- a side surface;
- and
- a body;
- wherein the body is at least partially disposed within the sleeve;
- and
- wherein the side surface of the cutting end interfaces with an interfacing surface of the lining.
7 more elements
A drill bit, comprising:
- a bit body having a plurality of blades extending radially therefrom;
- at least one cutting element disposed in a cutter pocket formed on the plurality of blades, wherein the at least one cutting element comprises:
- a sleeve;
- a lining extending a distance axially from an end of the sleeve;
- an inner cutter, comprising:
- a cutting end, wherein the cutting end extends a depth from a cutting face;
- a side surface;
- and
- a body;
- wherein the body is at least partially disposed within the sleeve;
- and
- wherein the side surface of the cutting end interfaces with an interfacing surface of the lining.
9 more elements
A cutting element assembly, comprising:
- a support structure, comprising:
- a sleeve portion;
- and
- a lining portion extending a distance axially from the sleeve portion;
- wherein the support structure has a non-uniform wall thickness;
- and
- an inner cutter partially disposed within the support structure, the inner cutter comprising:
- a cutting end, wherein the cutting end extends a depth from a cutting face;
- a side surface;
- and
- a body.
8 more elements
Dependencies are inferred from the claim text.